Art of making cloth-boards.



V A. M. OHA FFEE.

ART OF MAKING CLOTH BOARDS.

APPLICATION FILED MAY 17, 1913 Patented Jan. 6,1914.

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ALFRED M. CHAFFEE, 0F OXFORD, MASSACHUSETTS.

. ART or MAKING cnorn noanns.

To all whom it may concern: a Be it known that I, ALFRED M. Cnsrrnn, "a citizen of the United States, residing at Oxford, in the county of Worcester and State of Massabhusetts,-have invented a new and useful Improvement in the Art of Making Cloth-Board s, of which the follow ing is a specification, reference being made therein to the accompanying drawings.

This invention relates to a novel method of manufacturingcloth boards of the charucter herein specified; the objects being to simplify the process and operations in the construction of' articles of this class; to reduce the time and labor required in making' and assembling the boards; to render their manufacture more economical; and to attain a more perfect, uniform and desirable product.

To this end In invention consists in a process of menu acturc in which the materials are subjected to the treatments and manipulations substantially as hereinafter described and claimed; the order and nature senting the steps in my improved of said process being diagrammatically illustrated in the drawings, wherein *Figure' 1 isan elevation diagram repreprocess.

. Fig.2 is a plan view indicating the relation in whiclL-the parts are assembled. Fig. 3 is an end diagram showing a primal stage of the assembling. Fig. 4 is an end view of the 'partially formed cloth-board as at the compressing stage, and Fig. 5' represents a preferred form of unattached frame members. While I have illustrated the several steps of my improvedprocess by showingcertam means whereby the performance thereof may be facilitated, I'do not confine my invention to any special construction of mechanism, as the means for practising it may I boot different kind and arrangement.

The stock or materials employed for manufacturing cloth-boards in accordance with my within described process, 'com prises' longitudinal and transverse frame "members, and a moderately thin paper fab;

ric for the body covering of the same. The frame members as primarily prepared are of the character shown in Fi 5; all being of uniform thickness, the longitudinal mem- 'bersa being formed with semicircular outer edges and square inner edges; and the crosspiccesb are formed with square edges and square ends adapted to abut against the inner faces of the longitudinal members.

In carrying out my invcntim in practice the sheet or web (if-paper P for the boily covering of the cloth-board, is taken frpm the supply or roll 1 and passed through, a moisture-laden or humiditying atmosphere, within a chamber 2 into which damp stam is admitted, or a source 'of vaporization maintained within the chamber to an eig'tent that will impart to the paper any desired degree of inherent moisture. The paper is then passed over a glue-supply roller 3, or glue-spreading device, and one side of the v Specification of Letters Patent. v I Patented Jai 6, 1911;, application filed May 17, i913. Serial No. 768,207. i

paper thereby charged with a surface coating of glue or adhesive substance; The paper is then reversed about a guide-roll i to bring the glued face up, and by' a suitable shear 5 a portion .is cut theretromof sufficient dimension for the entire body covg sheet I" is placed upon a suitable table or V cring of a single cloth-board. This piece or form 6 furnishedwith end guides 7 and concave faced parallel guide-bars?) and 10 that are positioned to indicate the dimensions of the particular size of cloth-board tobe made in any instance. T he' f ront and; rear guide-bars, or one of them, are adjustable by any suitable means'for-contracting;

the form to a given extent for clamping purposes. Upon the glued surface of this severed sheet P I then assemble, individually, the unattached frame members, comprising the longitudinal side bars a and the abuttingly disposed cross ieces b which are formed with square en 5 to match against the that inner faces of said siderbars; first placing the rear longitudinal side-bar or member upon the glue-coated top: surface of the paper adjacent to the rear guide-bar 9, and crowding it down to place which 'act 9!} tends toelevate the rear edge of the paper,

as per dottedline 11, Fig. 3. The cross pieces I) are next placed n position .with their ends abutting against said first placed member, then the front longitudinal framemember is placed against the ends of the cross pieces and in rear of the guide-bar 10, the frame parts being thus assembled intheir proper relative positions, without nailing or any other rehminary attachment of the frame mem were to each other, but disposed as indicated in Fig. 2. The guide-bars 9 and 10, beneath the paper sheet, indicate approximately the position at which the frame members are to be located and. crowded down upon the top of the fiatlyspread glue-coated sheet. For convenience in practire one or both of the guide-barsare prefcrabl y hinged or mova l toward each other;

' When the frame members are thus assembled upon the first laid edge, its glued surface lappxi ng upon and adhering thereto and to the ame. The freshly formed cloth-board C is then removed from the forming table and placed upon a suitable supporting carrier 13- and subjected to a dryin heat within 'a hot chamber 15, to dry out t e moisture, so

. that; the shrinkage of the paper and adhesion of the glue binds the parts firmly and rigidl together; thus producing a superior clothcard without requiring the .use of nails in its structure, or the preliminaryfastening together of the bars of .the' frame,

' thereby saving much time, labor and cost in the manufacture.

What I claim and desire to secure by Let- J ters Patent, is-

1.' The improvement in' the, art of making cloth-boards of the character described, which consistsin preparatively moistening a sheet of paper fa ric of suitable dimension for the entire bod covering of the"board, coating one side 0 said sheet with eglueyas sembled vthereon loose unconnect frame members comprising the "parallel side-bars and intervening cross-pieces abuttingly disposed between the same, compressing the thus assembled parts firmly together in edgewise direction, closing inward, lapping and wiping down the opposite remaining portions of the glued. paper sheet upon the top of the frame members, then releasing the assembled board from compression and subjecting it to a uniformly complete.drying action. I

2. The improvement in the art of making cloth-boards, which consists in assembling a frame composed ofa set of loose unattached longitudinal and transverse frame members of the character described, upon a freshly glue-coated covering sheet adapted for inclosing said frame, 'the individual members of said frame being positioned in their predetermined order, compressing the assembled parts edgewise,-lapp1ng the rear and. front portions of the covering-sheet, one upon the other, and smoothing the same fiat down upon the assembled frame, and

subsequently drying the whole.- 1

3. In the art ofmaking cloth-boards, the process which consists in passing a web of" suitable paper from its roll through a humidifying atmosphere or damp steamy va-- por, char 'ng one surface thereof with a coating 0 semi-liquid adhesive substance, as

glue, drawing the end of the dampened glue-coated web to a osition indicating the predetermined size 0 the board, and severdry heated atmosphere for eliminating the moisture from the board.

ing from said web a, glue-coated-sheet sec- 4,. The improvement in the art of making flat skeleton-framed cloth-boards,, which con'sists in assembling the several members of whichthe frame is composed, in their independent unconnected condition, by placing the individual longitudinal. and transverse members in contacting-relation, properly disposed at the predetermined sitions, upon an expanded shrinkable bo y-covering sheet, inclosing said individually assembled unattached members therein by winding said sheet about the frame and uniting said frame members rigidly and solely by the shrinkage and adhesion of said. bodycovering sheet embracing the exterior of the r v 5, The improvement in the art of making paper-coveredflat cloth-boards, which consists in preparing a body-covering sheet of paper by passin the same through a dampcharg ed atmosp ere, and applying to said sheet a eoatin of adhesive substance, then formingdirect y upon the coated surface of said sheet a flat rectangular skeleton frame composed of independent front and rear side 4 bers,.turning upward the tree portion of the sheet coincidently'with the placing of said side members; applying to the parallel sides inward edgewise compression, then continuing and completing the covering of said frame while the parts are so compressed.

'lVitness my hand this 15th day of May,

' ALFRED M. CHAFFEE.

\Vitnesscs CHAS. H. BURLEIGH, EDWIN \Vnsnnr JENKINS. 

